Impact wrench



FIG. 1 is a left side view of an impact wrench showing our design;

FIG. 2 is a right side view of FIG. 1;

FIG. 3 is a front view of FIG. 1;

FIG. 4 is a rear view of FIG. 1;

FIG. 5 is a top view of FIG. 1; and,

FIG. 6 is a bottom view of FIG. 1.

The broken lines which define the bounds of the claimed design form no part thereof. 

The ornamental design for an impact wrench, as shown and described. 